Anyhow, you have heard the oldest stories in all the world--the fathers and mothers, so to speak, of all the great family of wonder-tales that have delighted and terrified children ever since. CHAPTER IX EXPLORING THE SOUDAN There is no more wonderful or interesting story than that which tells how bit by bit the great dark continent of Africa has been explored, and made to yield up its secrets. But did you ever think what a long story it is, and how very early it begins? It is in Egypt that we find the first chapters of the story; and they can still be read, written in the quaint old picture writing which the Egyptians used, on the rock tombs of a place in the south of Egypt, called Elephantine. [Illustration: Plate 11 THE SPHINX AND THE SECOND PYRAMID. _Page_ 79] In early days the land of Egypt used to end at what was called the First Cataract of the Nile, a place where the river came down in a series of rapids among a lot of rocky islets. The First Cataract has disappeared now, for British engineers have made a great dam across the Nile just at this point, and turned the whole country, for miles above the dam, into a lake. But in those days the Egyptians used to believe that the Nile, to which they owed so much, began at the First Cataract. Yet they knew of the wild country of Nubia beyond and, in very early times indeed, about 5,000 years ago, they used to send exploring expeditions into that half-desert land which we have come to know as the Soudan. Near the First Cataract there lies the island of Elephantine, and when the Egyptian kingdom was young the great barons who owned this island were the Lords of the Egyptian Marches, just as the Percies and the Douglases were the Lords of the Marches in England and Scotland. It was their duty to keep in order the wild Nubian tribes south of the Cataract, to see that they allowed the trading caravans to pass safely, and sometimes to lead these caravans through the desert themselves. A caravan was a very different thing then from the long train of camels that we think of now when we hear the name. For, though there are some very old pictures which show that, before Egyptian history begins at all, the camel was known in Egypt, somehow that useful animal seems to have disappeared from the land for many hundreds of years. The Pharaohs and their adventurous barons never used the queer, ungainly creature that carries the desert postman in our picture (Plate 12), and the ivory, gold-dust, and ebony that came from the Soudan had to be carried on the backs of hundreds of asses.